3-(Chloromethyl)-2-(difluoromethyl)-6-(trifluoromethoxy)pyridine-4-sulfonyl chloride
3-(Difluoromethyl)pyridine-2-carboxylic acid
4-(Difluoromethyl)-5-methoxy-2-(trifluoromethyl)pyridine
3-(Chloromethyl)-2-(difluoromethyl)-4-(trifluoromethoxy)pyridine-6-sulfonyl chloride